Actividad antioxidante, compuestos fenólicos y ácido ascórbico de frutillas en dos sistemas de producción
AUTOR(ES)
Cantillano, Rufino Fernando F, Ávila, Julia Maria M, Peralba, Maria do Carmo R, Pizzolato, Tânia Mara, Toralles, Ricardo P
FONTE
Hortic. Bras.
DATA DE PUBLICAÇÃO
2012-12
RESUMO
The aim of this study was to determine the influence of the crop production system and storage period on weight loss, total phenolic content, total anthocyanin content, ascorbic acid (vitamin C) content, and antioxidant activity in strawberries, as well as their correlations. For this experiment, strawberry fruits of 'Camarosa' and 'Camino Real' at commercial maturity from both organic and conventional crop production systems located in Pelotas, Brazil, were used. The fruits were cold stored for 0, 2, 5, and 8 days at 1ºC and 90-95% RH. In general the total phenolic, total anthocyanin levels and antioxidant activity increased during cold storage. Ascorbic acid levels and fresh weight decreased significantly. Total phenol and anthocyanin levels showed positive correlations with total antioxidant activity, while the ascorbic acid content showed a negative correlation. Strawberries produced by the organic system and cold stored for five days showed higher values of antioxidant activity. After storage at 1ºC for eight days, strawberry fruits from the organic production system presented lesser anthocyanin and ascorbic acid degradation than the fruits from the conventional production system.
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